简介
查看系统支持几种shell
# cat /etc/shells
# chsh -l
# echo $0
操作:
[root@localhost ~]# cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/usr/bin/sh
/usr/bin/bash
/usr/sbin/nologin
/bin/tcsh
/bin/csh
[root@localhost ~]# chsh -l
/bin/sh
/bin/bash
/sbin/nologin
/usr/bin/sh
/usr/bin/bash
/usr/sbin/nologin
/bin/tcsh
/bin/csh
[root@localhost ~]# echo $0
-bash
常用 shell 简介
Bsh
Csh
Ksh = Bsh + Csh =(融合两者特性)
Bash = Linux默认shell
Zsh = 集成Bash与Ksh等多种shell程序优点
tcsh = Csh升级版,运行Csh时直接运行tcsh